Providing 500mm DI Pumping main for Muthumandabam Sump to Allapuram Gravity main in Vellore Corporation

MATERIALS

Supply and delivery of the following Ductile iron S/S pipes conforming to relevant IS Specification and as amended from time to time with ISI marking suitable for water supply main including all taxes, loading freight, transit, unloading and stacking them at stock yard etc. complete and as directed by TWAD Board Officers.

500 mm dia DI K7 S/S Pipe

Supply and delivery of the following DI D/F specials conforming to IS 8329/2000 and as amended from time to time with ISI marking including loading, freight unloading and stacking at site etc.., complete and as directed by the TWAD Board Officers.

350mm dia DI K7 D/F Pipe

350mm dia DI K7 D/F Pipe

350mm x90mm DI D/F Bend

350mm x90mm DI Duck foot Bend

350mm x 22 1/2 degree D/F bend

350mm x 300mm DI D/F Reducer

500mm x 400mm D/F Reducer

400mm x 350mm D/F Reducer

600mm x 500mm D/F Reducer

Manufacture, Supply and Delivery of DI D/F Slanted seat Swing Check Valve. Body of ductile cast iron of Grade GGG 40 or GGG 50 and disc of ductile cast iron GGG 40 or GGG 50 with fully encapsulated EPDM rubber, where both faces can be used. Electrostatic epoxy powder/liquid coating (EP-P) inside and outside color blue RAL 5005 with minimum coating thickness of 250 microns. The EPDM rubber & Epoxy Powder should be approved by W 270. (EP-P) it is a resicoat powder approved for drinking water application, applied through fusion bonding proces s by dipping the shot-blasted casted components heated up to 200 deg C). Face to face dimensions as per EN558-1, series 48 and flange connections as per EN 1092-2/IS 1538 and with 5 years warranty the valves should be with electrostatic powder coating both inside and outside with pocket less

300mm NRV D/F

Supply and delivery of DI D/F Gate (sluice) valves (soft seated) resilient seated soft sealing Gate Valves (Sluice Valves) with body Bonnet of Ductile cast iron of Grade GGG 40 or GGG 50,fully rubber lined with EPDM replaceable spindle nut without gland packing and with 3 O- Ring Wedge protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% protection on the shaft and seals of NBR and the valves should be of Vacuum tight and 100% leak proof with face to face dimensions as per BS 5163-89/ISI 14846-2000/DIN 3202 F4. All straight through body passage. All the valves are to be compatible for pressure rating PN 10/16 and with 5 years warranty

350mm Sluice Valve

Supply and delivery of the following DI S/S specials conforming to IS 8329/2000 and as amended from time to time with ISI marking including loading, freight unloading and stacking at site etc.., complete and as directed by the TWAD Board Officers.

500mm Flanged Spigot Tail Piece

500mm All Socket 90 degree bend

500mm All Socket 45 degree bend

500mm All Socket 22 1/2 degree bend

500mm All Socket 11 1/4 degree bend

500mm Flanged Socket

Supply and delivery of MJ collars with necessary rubber insertions, bolts & nuts including, loading & unloading, transporting charges, all taxes etc., complete at site as per standard specification and as directed by TWAD Board officers.

500 mm dia M.J Collar

Rubber Insertion Sheet (3 Ply R.I. Sheet)

Supply and delivery of RUBBER GASKETS AS PER IS 5382/1985 (Reaffirmed 1998) etc.., complete and as directed by the TWAD Board Officers.

500mm RUBBER GASKETS

20mm dia and above x 90mm to 120mm length fully threaded bolts and with nuts 2 Nos.

CIVIL WORKS

Earth work excavation and depositing on bank with initial lead of 10 m and lift of 2 M in narrow trenches having bed width 1.25m & below for laying of pipes for water supply and sewerage works in the following type of soils as directed by Departmental officers

Sand, silt or other loose soil, wet sand or silt not under water light black cotton soil, sandy loam and ordinary soil.SS20B (IN RIVER PALAR)

Lowering DI pipes and specials to trench and laying to proper grade and alignment, and as directed by TWAD board officers.

500mm S/S DI K7 Pipes

Jointing DI Pipes and specials with rubber gaskets as per standard specification (Tyton joint) including cost of lubricants etc., (Including cost of Jointing materials.)

500mm S/S DI K7 Pipes

Jointing the C.I/ D.I Double flanged pipes and specials with rubber insertion to with IS-638(1979) and M.S. bolts and nuts of IS 1364-1 (2002), including cost of jointing materials such as bolt and nuts Rubber insertion and labour charges etc.,

350mm dia DI K7 D/F Pipe (2mx 7nos)

350mm dia DI K7 D/F Pipe (1mx 3nos)

Labour charges for jointing mechanical joint collars using bolts, nuts, gasket and fixing in position as directed by TWAD Board officers.

500 mm dia DI K7 Pipes

Refilling with excavated soil (other than sand)complying with standard specification in layers of 15cm watered well rammed and consolidated after the pipes and specials are laid,jointed and tested etc. and removing and depositing the surplus earth at the places shown by the TWAD Board Officers.

500mm S/S DI K7 Pipes

Testing of pipes for water supply with hydraulic testing equipment by filling with water (including cost of water) and testing to recommended pressure in convenient stretches and attending the bursts if any occured during the test, excluding the cost of pipes but including other incidential and operational charges etc., complete for the following diametres of pipes

500mm S/S DI K7 Pipes

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